[2026-02-25][refactor][general] update data model from `contact` to `customer` and adjust number access to `identities` array.
👤 Author : Dapanel
🌿 Branch : main
🔗 Commit : 9c9929b
📅 Date : 2026-02-25
📝 Note :
refactor: update data model from contact to customer and adjust number access to identities array.